Omega 3 and 6 (Essential Fatty Acids) Blood Test, from our experts to you.
Dr Sam Rodgers MBBS, MRCGP

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What do omega-3 and
omega-6 do for our bodies?

Fats are needed in every cell of our bodies and are vital for regulating blood pressure, strengthening our immune system, and keeping our brains healthy. The human body can produce all the fatty acids it needs except for two - linoleic acid (an omega-6 fatty acid) and alpha-linolenic acid (an omega-3 fatty acid). These are essential fatty acids, and you must get them through your diet.

Omega-6 fatty acids have a pro-inflammatory role, while omega-3 fatty acids have an anti-inflammatory role. Although inflammation helps the immune system fight infection, chronic inflammation in the body can lead to diseases, including heart disease and autoimmune diseases.


What foods are
omega-3 and omega-6 found in?

Omega-6 is in most vegetable oils, poultry, leafy green vegetables, and nuts. Omega-3 is in a smaller number of foods, such as oily fish, seeds, and nuts.


What's a good ratio
of omega 6:3?

An ideal ratio of omega 6:3 is about 2:1, which is usually achievable by changes in diet and supplementation of omega-3-rich fish oils or algae. As human diets have moved from that of hunter-gatherers to the modern agricultural era, the amount of omega-6 fatty acids we consume has increased dramatically. On average, we now get more than ten times the amount of omega-6 as omega-3. This ratio of around 16:1 is thought to be responsible for several inflammatory diseases, such as heart disease and type 2 diabetes.


What's included?

Omega fatty acids
Select profile for more information

Omega 6 : Omega 3 Omega 6 and omega 3 are essential fatty acids in the body responsible for controlling inflammation, brain development and regulating blood pressure. Omega 6 is thought to have a pro-inflammatory role in the body while omega 3 is thought to have an anti-inflammatory role. The ideal ratio is thought to be around 2:1 although many people eating a Western diet, rich in processed foods and omega 6 processed vegetable oils have a ratio of over 10:1.

How to prepare
for your test

Special instructions

Prepare for your Omega 3 and 6 (Essential Fatty Acids) Blood Test by following these instructions. Do not eat for 12 hours prior to your test. Drink plenty of water, if you take medication then you are allowed to take it as you would normally. Do not take Omega 3 supplements for 24 hours prior to your test.


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